Presidential candidates in the race to lead the United Teachers of Los Angeles faced tough questions and a rowdy audience last night, in the second forum of the campaign season. It was the first time all 10 candidates — Alex Caputo-Pearl, the incumbent Warren Fletcher, Bill Gaffney, David Garcia, Saul Lankster, Kevin Mottus, Marcos Ortega II, Innocent Osunwa, Leonard Segal and Gregg Solkovitz...